With a 4.38% APY for balances up to $15,000, Fort Sill not only offers a higher rate than Liberty National of Lawton, Okla., but you can put more money in your account.

Liberty National is offering a 4.11% APY on balances up to $10,000.

To earn the 4.38% APY rate from Fort Sill Federal Credit Union, you need to jump through the usual hoops — make 12 debit card purchases and one direct deposit per month, receive e-statements and use online banking.

If you fail to meet the requirements, you’ll earn 0.10% APY on your account for the month. And for any balances topping $15,000, you’ll earn 0.50% APY.

You can join the credit union if you live, work or go to school in Comanche County. You can also join if you have an immediate family member who is qualified for membership.